Buckinghamshire · London and the South East
Thermal Roof Survey in Grendon Underwood
Thermal imaging to find moisture and heat loss patterns in a roof in Grendon Underwood, with drones and thermal imaging where they help. Get in touch for a price.
- Damp that repairs haven’t cured
- Missing or slipped insulation
- Heat escaping through the roof
Different roofs, different checks
Pitched slate and tile roofs
From inside the loft, the camera can help with damp around chimneys, valleys and roof windows. We check any patterns with moisture readings.
Loft insulation
Loft insulation is easily disturbed when people store things or run cables. Thermal images can show where it has been pushed aside.
Thermal roof surveys for homes and businesses in Grendon Underwood
A thermal camera can help when the cause of damp isn’t obvious. Leaks frequently run along a roof before they appear on a ceiling, and temperature patterns can help us trace where it may have come from. We combine the images with a visual inspection and moisture readings, so the findings do not rely on the camera alone. We survey pitched roof slopes, commercial roofs and insulated roof spaces, and the problems we are asked to look at most are stains that keep coming back and leaks that are hard to trace.
Older buildings in small places like Grendon Underwood may be listed or in a conservation area. A look from the air or with a thermal camera does not touch the roof, so it is a gentle way to see the condition of an old roof. Changes that affect a listed building’s special interest need listed building consent, so check with the council first.
Nothing in the report is left vague: where something needs attention, it says so plainly, along with how urgent it is.
- Place
- Grendon Underwood (HP18)
- Wider area
- Buckinghamshire
- Price
- From £400 inc. VAT
- Your report
- Written, with photos, emailed to you
- Appointments
- Monday to Sunday, daytime
- Insurance
- Professional indemnity and public liability
- Call
- 07833 053749
- Page updated
- 27 October 2026
What a survey costs
To price your survey, we check:
- The size of the roof
- Commercial roofs and larger buildings
- The shape of the roof and its details
- The number of roofs, including extensions and garages
Bigger, taller and commercial roofs take more time to survey, so they’re priced to match. You’ll know the figure before booking.
Booking your survey
When you call or email, these details help:
- Anything about access we should know
- When you need the report by
- Where any leaks, stains or damp patches show inside
- The property’s address and postcode
Our phone lines are open seven days a week. For a price or to book, phone 07833 053749 or drop us an email.
What a thermal roof survey looks like in Grendon Underwood
Where the drone is part of the survey, the flight is checked against the Drone Safety Map first. Thatch survives on some older buildings in Buckinghamshire’s villages. Across the South East, older homes tend to have slate or clay tiles, and many later ones concrete tiles. Older coverings on steep or tall roofs are hard to judge from below, so close-up close-up aerial shots and thermal images help.
Claydon House lies about 3.6 miles north-east, so building around Grendon Underwood goes back a long way. Photos from the air and thermal images let an old roof be checked without anyone disturbing it. Anyone responsible for a site like Grendon Underwood Combined School will know that a drone or thermal camera can show a large roof in a single visit.
Grendon Underwood is about 6 miles east of Bicester, in Buckinghamshire. Whether the building in Grendon Underwood is a house, a flat or a commercial unit, the roof can be surveyed. Grendon Underwood is one of the places in Buckinghamshire where we work for thermal roof surveys. We also survey roofs in Oxford.
Every address in HP18 is within our area for thermal roof surveys. If you need a thermal roof survey at a property on Main Street, The Firs and Darley's Close or a nearby road, we can help. Nearby, we also carry out thermal roof surveys in Edgcott (1 mile north), Ludgershall (2 miles south-west), Piddington (3 miles south-west), Blackthorn (4 miles west) and Brill (5 miles south-west). We also work in nearby towns like Aylesbury (9 miles south-east), Buckingham (8 miles north), Elmhurst (9 miles south-east), Southcourt (10 miles south-east), Princes Risborough (13 miles south-east) and Haydon Hill (8 miles south-east).
What’s near Grendon Underwood
Open spaces near Grendon Underwood include Upper Ray Meadows.
Checking the roof from the ground
Watch the gutters in a downpour, from a window or the ground. Water spilling over the edge can point to a blockage or a sagging run.
What you can’t do safely is get up close. Roofs are fragile and slippery. That part is for a survey.
What we’re asked to look at in Grendon Underwood
Some buyers want extra detail before they commit to a purchase. The Premium Survey brings thermal imaging and a drone inspection where it applies, with a report the same day, which suits a purchase that is moving quickly.
Here are some of the things we see frequently:
- Leaks far from where the stain appears
- Areas losing heat at the eaves and junctions
- Wet areas near outlets and upstands
- Wet insulation beneath the membrane
The streets around a church like Church of St Leonard are often among the oldest in a place, and if your home is one of the older ones nearby, thin or patchy insulation under an old roof frequently shows up clearly on a thermal image.
What to check before booking
- Which viewpoints they use to see the roof
- Their drone registration, if they fly one
- When you will get the report
- What experience they bring
How the survey works
The visit has one job: to see as much of the roof as can be seen safely and record it clearly. Notes and photos go into the written report. The visit typically takes roughly 1–2 hours for a house; commercial roofs usually need 3–4 hours. Somewhere as small as Grendon Underwood, access is often the only tricky part. Let us know about outbuildings, past repairs and any leaks you’ve noticed. Visits can be on weekdays, Saturdays or Sundays.
- First we go over the roof, the problem you’ve noticed and the conditions forecast for the visit.
- We look at the roof from the ground, from windows and from the roof itself where it is safe.
- We take thermal images of the roof to pick up temperature patterns.
- Any patterns of interest are checked with moisture readings where we can reach them.
- We write up the thermal images alongside ordinary photos and recommendations.
How to prepare
- Jot down any questions you want answered
- Keep pets out of the way during the survey
- Let us know about any leaks, stains or damp patches you know of
Book a survey
For a price for thermal roof surveys in Grendon Underwood, call 07833 053749 or send us an email. The address, the type of property and what you want to find out help us give you an accurate price.
Related advice
Towns and villages near Grendon Underwood
Also in Grendon Underwood
Questions from Grendon Underwood
How do I find out if my home in Grendon Underwood is listed?
Check Historic England’s online list first, then ask the council about conservation areas and any Article 4 direction. It matters most if you’re planning to re-roof in a different material.
Do you cover smaller places like Grendon Underwood?
Yes, Grendon Underwood is covered. Our area covers London and South East England, and smaller places are part of that. Longer journeys are simply planned in advance.
Is thermal imaging included in your surveys?
Thermal imaging is included in our Premium Survey, from £400. That also includes a full inspection, a drone inspection where applicable, structural analysis and a same-day report.
Does thermal imaging detect leaks directly?
No, not on its own. It shows temperature, and wet materials often behave differently from dry ones. We confirm what it suggests with moisture readings.
What insurance do you have?
Professional indemnity and public liability insurance cover our surveys. Ask if you need details for a managing agent or building owner.
What happens next?
You receive the written report by email, with photographs and recommendations. It is yours to share with a seller, insurer, roofer or managing agent, whichever applies.
Do you survey roofs on blocks of flats?
Yes, once whoever controls the roof agrees access. We check the parts we are given access to, and the report makes that clear.
Tips that help
Over many surveys, some simple habits stand out as worth the effort:
- Let us know where and when you’ve seen damp or stains
- Take photos of stains as they appear, so we can compare
- Heat the home normally on the days before
- Leave the roof to people with safe access
If you’re buying, the report gives you specific points to raise with the seller or agent. What you do with it is up to you, whether you ask for work before completion or discuss the price.
Watch for new damp patches on ceilings beneath the roof. Catching a leak early stops insulation getting soaked.